package com.zwj.service;

import com.zwj.bean.User;

/**
 * @author zwj
 * @create 2021-05-12-16:44
 */
public interface UserService {
    //注册用户
    public void registUser(User user);
    //登录
    public User login(User user);
    //判断用户名是否存在
    public boolean existsUsername(String username);
}
